netdev - Re: Recurring trace from tcp

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Message-ID: <CADVnQyn20JyAQqohihu5q=gfLHeQAAtn_VABMsZCvNPdQ3R+uw@mail.gmail.com>
Date:	Thu, 4 Jun 2015 15:34:58 -0400
From:	Neal Cardwell <ncardwell@...gle.com>
To:	Grant Zhang <gzhang@...tly.com>
Cc:	Netdev <netdev@...r.kernel.org>, Yuchung Cheng <ycheng@...gle.com>,
	Eric Dumazet <edumazet@...gle.com>
Subject: Re: Recurring trace from tcp_fragment()

On Thu, Jun 4, 2015 at 12:35 PM, Grant Zhang <gzhang@...tly.com> wrote:
> Hi Neal,
>
> Unfortunately with the patch we still see the same stack trace. Attached is
> the TcpExtTCPSACKReneging with the patch, captured with 60 seconds interval.
> Its value is incremented at an similar speed as before, about 30/minute.
>
> If you want to collect any other data, please feel free to let me know.

OK, very interesting. Thank you so much for testing that patch. We
will work on coming up with another patch to try to address this.

Thanks!

neal
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